What To Do If Prius Key Battery Dies. OK its been 9 years since you posted the question but the right answer is according to the owners manual AND I have actually done this. A dead Prius key does not stop you from operating your vehicle.
Firstly the replacement battery. How to start a Toyota with Push Button start that has a dead smart key battery. It should uncouple itself without any issues.
This should work on all push button start vehicles like the Toyota Camry Rav.
I saw there is a little key inside it to open up the drivers door but there is no regular key ignition in the car. I saw there is a little key inside it to open up the drivers door but there is no regular key ignition in the car. Any size donations are welcome. In some vehicles the 12v battery starts the car but in a Prius the hybrid battery is responsible.
